Ram 4500 Back Up Light Bulb Size
The Ram 4500 back up light utilizes 7440, 921, and 1156 bulb sizes depending on the specific configuration of the lighting assembly. Data for the bulbs covers the range from 2011 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2018 | 7440 (With Projector Headlamps) | W21W | Check Price |
| 921 (Without Projector Headlamps) | W16W | Check Price | |
| 2011-2012 | 1156 | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W. | 7440 | Check Price |
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |